#include <vector>
#include <iostream>
using namespace std;
class NoDefault{
public:
	NoDefault(int n):num(n){}
	ostream& print(ostream &os){
		os<<num<<" ";
	}
private:
	int num;
};
class C{
public:
	C()=default;
	NoDefault mem;
};
int main(){
	//C c;
	vector<NoDefault> vec(10);
	for(NoDefault def:vec){
		def.print(cout);
	}
	return 0;
}